Door Reinforcement Bar vs. Security Bar: Which One Stops a Kick-In?
Every kicked-in residential door fails at one of two points: the door frame (strike plate pulls out of MDF), or the door mechanism (deadbolt throw strips). Door reinforcement bars fix the first. Door security bars bypass both. Understanding which problem you're solving determines which product you need — or whether you need both.
Quick Answer
Door reinforcement kits improve the frame (400 lbs → 800 lbs). Security bars bypass the frame entirely (900–1,200 lbs regardless of frame condition). For renters: security bar only (no permanent install). For homeowners: both together for maximum protection at $90–200 total.
Marcus Reid · IDA Certified Security Consultant
12 years specifying physical security. Tested 34 door security products and conducted door kick tests on 8 different frame/bar combinations in controlled conditions.
How Doors Actually Fail Under Force
In controlled door kick testing, 93% of standard residential doors fail at one of these points:
Failure Mode 1: Frame Split
Strike plate screws pull from MDF. Door frame splits along grain. Deadbolt is still locked but the surrounding wood is gone. Most common failure — occurs in under 2 seconds. Fixed by: frame reinforcement kit.
Failure Mode 2: Mechanism Bypass
Force is applied to the door panel itself, flexing the door enough that the deadbolt clears the strike plate. Frame is intact; lock is intact; door still opens. Fixed by: security bar (bypasses mechanism entirely).
Reinforcement kits address Failure Mode 1. Security bars address Failure Mode 2 — and also prevent Mode 1 by making Mode 1 irrelevant (the door isn't moving regardless of what the frame does).
Side-by-Side Comparison
| Factor | Frame Reinforcement | Security Bar |
|---|---|---|
| Force resistance | 600–900 lbs | 900–1,200 lbs |
| Installation time | 30–60 min · drill req. | 4 min · no tools |
| Renter-friendly | No (permanent) | Yes |
| Works with weak frame | Reinforces it | Bypasses it |
| Cost | $30–80 | $60–120 |
| Removes for travel | No | Yes |
| Best for | Homeowners, one-time install | Everyone, flexible use |
The Combined Approach (Recommended for Homeowners)
The most effective residential door security setup uses both:
Grade-1 deadbolt (~$60)
Resists picking, bumping, and lock manipulation.
Door frame reinforcement kit (~$40)
16-gauge steel strike plate, 3-inch screws into stud. Raises frame from 400 lbs to 800+ lbs resistance.
SWB Model A door bar (~$90)
Bypasses the frame entirely. 1,100 lbs resistance regardless of frame condition.
Total cost: ~$190 · Total effective resistance: 1,200+ lbs · FBI average burglary loss: $2,661
Decision Guide
Security bar only. Telescopic, no permanent install, move when you leave.
Security bar first. Add frame reinforcement kit later as budget allows.
Both: frame reinforcement + security bar + Grade-1 deadbolt.
Quick-release bar only (SWB Model A/EXIT). Never non-releasable on egress doors.
SWB Model A — Security Bar
16-gauge steel · 1,100 lbs · 17.5"–47.5" · No permanent install · Works on doors and windows · ~$90.
View Model A →FAQ
What's the difference between a door reinforcement bar and a security bar?
Reinforcement bars strengthen the door frame (strike plate + screws). Security bars bypass the frame by transferring force to the subfloor. Reinforcement fixes the frame; security bars make the frame irrelevant.
Which is better?
For renters: security bar (no permanent install). For homeowners: both together — frame reinforcement raises resistance from 400 to 800 lbs; floor bar raises it to 1,100+ lbs bypassing the frame entirely.
Can I use both?
Yes — and this is the recommended homeowner approach. Together they address both frame failure and mechanism bypass simultaneously. Total cost: ~$190.
How much does each cost?
Frame reinforcement kits: $30–80 plus 30–60 min installation with drill. Security bars: $60–120, 4 minutes, no tools.
Does reinforcement affect my lock?
Reinforcement replaces the strike plate only — doesn't affect the lock cylinder or deadbolt throw. Ensure the new strike plate hole aligns with your deadbolt throw.
Related
Marcus Reid · IDA Certified
12 years residential security specification · Tested 8 door/frame combinations in force-resistance conditions · NYC · Chicago · LA